neb.com will be undergoing maintenance beginning Friday, December 9th, at 5pm ET and will last through Saturday, December 10th, at 3pm ET. Online ordering will not be available during this time. We apologize in advance for any inconvenience this may cause.

NiCo21(DE3) Competent E. coli

Having trouble opening your tubes? NEB Tube Opener can help!

Chemically competent E. coli cells suitable for T7 expression with improved purity of target proteins isolated by IMAC.

  • Superior alternative to BL21(DE3) for routine protein expression
  • Deficient in proteases Lon and OmpT
  • Resistant to phage T1 (fhuA2)
  • Free of animal products
  • No dry ice surcharge on competent cell shipments
Catalog # Concentration Size List Price Your Price Quantity
C2529H Not Applicable 20 x 0.05 ml $398.00
Please enter a quantity for at least one size
Loading Spinner